Fixes slight overread.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
/* load trees to extradata, they will be unpacked by decoder */
- st->codec->extradata = av_malloc(smk->treesize + 16);
+ st->codec->extradata = av_malloc(smk->treesize + 16 + FF_INPUT_BUFFER_PADDING_SIZE);
st->codec->extradata_size = smk->treesize + 16;
if(!st->codec->extradata){
av_log(s, AV_LOG_ERROR, "Cannot allocate %i bytes of extradata\n", smk->treesize + 16);